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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 60 of them, across 37,936 current listings.

Updated November 5, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

37,936

Retailers carrying

60

Median confirmed price

HK$3,639

Grade combinations

25

Certificate mix:IGI 35,765 · GIA 527 · GCAL 461 · HRD 1

What it actually costs

Half of these diamonds are listed between HK$2,298 and HK$6,056 (as of November 5, 2026).

Lower 10% HK$1,757Median HK$3,639Upper 10% HK$9,769

Middle half listed between HK$2,298 to HK$6,056

Certificated stones with a recently confirmed price only, 3,218 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Cheapest to dearest, median

314%

Cheapest to dearest, median in price

HK$8,100

Stones compared

2,337

Across 2,337 stones of this size and shape carried by more than one retailer, the dearest listing sits 314% above the cheapest for the identical certificated diamond, a typical gap of HK$8,100. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  1. 1Rare Carat2,845 in stock
    United States·Founded 2016·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6NZ Jewellers1,593 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  9. 9Adiamor1,499 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  10. 10B2C Jewels1,426 in stock
    United States·Founded 2004·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  1. 11

    The Perfect Carat

    1,388 in stock
    US
    Terms not yet verified
  3. 13Aurelinne1,235 in stock
    United States·Founded 2021·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  6. 16Cape Diamonds1,027 in stock
    South Africa·Founded 2005·7-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  7. 17Yorxs1,002 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs

Stock counts are updated daily. Founded and shipping details come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer above. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

13 of the 25 retailers ship to Hong Kong. 12 do not.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

E VVS25,354 · 54rD VVS25,140 · 56rD VVS14,871 · 51rD IF4,281 · 48rD FL3,665 · 39rE VS13,362 · 53rD VS13,099 · 54rE VVS11,854 · 53rF VVS21,833 · 52rF VS11,041 · 49rE VS2765 · 41rF VVS1440 · 43rD VS2416 · 42rG VS1365 · 33rE IF344 · 38rF VS2318 · 36rG VVS2232 · 33rE FL211 · 33rG VVS169 · 23rG VS266 · 23rH VS165 · 11rF IF40 · 25rH VS237 · 8rH VVS233 · 6rH VVS127 · 3r

Stones at this spec now

Current examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.

Frequently asked

How much do retailers differ on the same diamond?

Across 2,337 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 314%, about HK$8,100.

Can I see retailers for one exact grade?

Yes. Each of the 25 colour and clarity combinations above has its own page listing the retailers that stock exactly that grade.

Does Carat Hunter earn commission from these retailers?

No. We earn zero affiliate revenue from any retailer in our index.

How fresh is this data?

Listings refresh as we re-read each retailer, most of them every day. Static facts about each retailer refresh weekly.

How is the retailer ranking calculated?

Strictly by active inventory count for this exact spec. The retailer carrying the most stones at the spec ranks first. There is no editorial input, weighting or affiliate consideration.

Why do you not show per-retailer prices on this page?

Prices vary per stone, not per store. Click through to any matched diamond and you will see every retailer's price on the exact same physical stone, which is the meaningful comparison.